diff --git a/docs/project-memory/shared-memory/pitfalls.md b/docs/project-memory/shared-memory/pitfalls.md
index eaa166ee0..9cbc28991 100644
--- a/docs/project-memory/shared-memory/pitfalls.md
+++ b/docs/project-memory/shared-memory/pitfalls.md
@@ -2,6 +2,11 @@
 
 这里只记录对当前开发仍有用的症状、根因、排查方法和风险边界。同一事实保留一个当前口径；退役对象的专属过程与单轮测试结果由 Git 历史追溯。遇到旧路径或版本时，以现行代码和专题文档为准。
 
+## 2026-10-05 自定义作者插槽应保留昵称降级语义
+
+- 游戏公开投影里的「创作者」「未知作者」是角色占位词。作者昵称 hook 已将加载中和查询失败分别转成 null 与空串，宿主不能再用 `|| game.author.name` 把占位词补回。
+- 替换共享详情组件的作者插槽时，同时接管了默认作者行的空名降级；只展示解析后的昵称，空名仍保留有可访问名称的主页入口，关注操作按作者 ID 和关系状态控制。回归覆盖补查等待、成功、空名和失败。
+
 ## 2026-10-05 页面返回兜底不能新增历史条目
 
 - 普通链接整页打开的条目可能没有应用导航标记；此时返回若调用 `pushAppHistoryPath`，再点返回就会退回原深链，形成循环。无应用内历史的返回应使用 `replaceAppHistoryPath`，有历史时保留原生后退。
diff --git a/docs/technical/【技术方案】创作者主页与关注粉丝工程设计-2026-10-05.md b/docs/technical/【技术方案】创作者主页与关注粉丝工程设计-2026-10-05.md
index 47c8f2689..a10d7b7e9 100644
--- a/docs/technical/【技术方案】创作者主页与关注粉丝工程设计-2026-10-05.md
+++ b/docs/technical/【技术方案】创作者主页与关注粉丝工程设计-2026-10-05.md
@@ -102,7 +102,8 @@ type CreatorRelationshipResponse = {
 
 ## 前端状态与组件责任
 
-- 主页 `/creators` 解析当前账号，`/creators?id=...` 读取指定公开用户；关系列表用 `/creators/connections?id=...&tab=following|followers`，缺主人或非法 tab 展示明确无效链接状态。显式他人 ID 不因登录切换改成自己的主页。
+- 主页 `/creators` 解析当前账号，`/creators?id=...` 读取指定公开用户；关系列表用 `/creators/connections?id=...&tab=following|followers`，缺主人或非法 tab 展示明确无效链接状态。tab 缺省、空串及其他值均无效，不请求关系列表，并保留返回入口。显式他人 ID 不因登录切换改成自己的主页。
+- 游戏详情作者昵称只使用 `useGameAuthorDisplayName` 的解析结果，加载中或查询失败时不回退到公开投影的角色占位词；保留头像与可访问的主页链接，关注操作继续按作者 ID 和关系状态控制，不依赖昵称补查成功。
 - 关系状态按访问者 ID、目标 ID 隔离。业务 hook/client 负责请求、写入单飞、失败回读和失效；共享关注按钮、用户行只接收数据、pending 和回调，不直接持有认证或网络副作用。
 - 自己/他人的关注列表、粉丝列表四种组合均支持头像/昵称进入任意用户主页；用独立链接和按钮避免嵌套交互。列表用户为自己时隐藏关注按钮，主页仍可访问。
 - 他人的关注、粉丝列表统一使用只读用户行，不挂载关系动作或触发关系 hook，不调用 relationship 补查接口、不比对访问者自己的关注集合，也不使用预存关系缓存推导按钮。列表切换或账号切换后重新按主人/访问者身份确定模式；进入目标用户主页后，再按主页本身的规则读取关系和提供关注操作。
diff --git a/packages/shared/src/components/CreatorControls/index.tsx b/packages/shared/src/components/CreatorControls/index.tsx
index 9ffe8129d..3c3acf8ae 100644
--- a/packages/shared/src/components/CreatorControls/index.tsx
+++ b/packages/shared/src/components/CreatorControls/index.tsx
@@ -63,7 +63,12 @@ export function CreatorUserRow({
   return (
     <div className="creator-user-row">
       {href ? (
-        <a className="creator-user-link" href={href} onClick={onClick}>
+        <a
+          className="creator-user-link"
+          href={href}
+          onClick={onClick}
+          aria-label={name ? undefined : '查看创作者主页'}
+        >
           {content}
         </a>
       ) : (
diff --git a/packages/shared/src/components/GameDetailDisplay/index.tsx b/packages/shared/src/components/GameDetailDisplay/index.tsx
index 7d555cd27..fe0f5104f 100644
--- a/packages/shared/src/components/GameDetailDisplay/index.tsx
+++ b/packages/shared/src/components/GameDetailDisplay/index.tsx
@@ -56,8 +56,9 @@ export interface GameDetailDisplayProps extends GameDetailShowcaseProps {
     /** 缺省时不显示游玩次数。 */
     playCount?: number;
   };
-  /** 「游玩方式」文案；缺省「未标注操作方式」。 */
+  /** 替换默认作者行；缺省时按 game.author.name 展示。 */
   authorContent?: ReactNode;
+  /** 「游玩方式」文案；缺省「未标注操作方式」。 */
   controlsLabel?: string;
   /** 「当前版本」文案；缺省 —。 */
   versionLabel?: string;
diff --git a/src/components/creator/CreatorConnectionsPage.tsx b/src/components/creator/CreatorConnectionsPage.tsx
index 8535a68ba..83432f987 100644
--- a/src/components/creator/CreatorConnectionsPage.tsx
+++ b/src/components/creator/CreatorConnectionsPage.tsx
@@ -21,7 +21,7 @@ import { CREATOR_CHANGED_EVENT } from './creatorRelationshipState';
 
 type Props = {
   id: string | null;
-  tab: CreatorConnectionKind;
+  tab: CreatorConnectionKind | null;
   onOpenCreator: (id: string) => void;
   onOpenConnections: (id: string, tab: CreatorConnectionKind) => void;
   onBack: () => void;
@@ -29,12 +29,21 @@ type Props = {
 export function CreatorConnectionsPage(props: Props) {
   const auth = useAuthUi();
   const viewer = auth?.canAccessProtectedData ? (auth.user?.id ?? null) : null;
-  if (!props.id) return <p role="alert">缺少创作者 ID</p>;
+  if (!props.id || !props.tab)
+    return (
+      <div className="creator-page">
+        <button type="button" className="creator-follow" onClick={props.onBack}>
+          返回
+        </button>
+        <p role="alert">{!props.id ? '缺少创作者 ID' : '无效的关系列表链接'}</p>
+      </div>
+    );
   return (
     <ConnectionsContent
       key={`${viewer}:${props.id}:${props.tab}`}
       {...props}
       id={props.id}
+      tab={props.tab}
       viewer={viewer}
     />
   );
@@ -46,7 +55,7 @@ function ConnectionsContent({
   onOpenCreator,
   onOpenConnections,
   onBack,
-}: Props & { id: string; viewer: string | null }) {
+}: Props & { id: string; tab: CreatorConnectionKind; viewer: string | null }) {
   const own = viewer === id;
   const root = useRef<HTMLElement>(null);
   const locationKey = window.location.pathname + window.location.search;
diff --git a/src/components/game-distribution/GameDetailPage.tsx b/src/components/game-distribution/GameDetailPage.tsx
index a6e5e2061..6d04e8409 100644
--- a/src/components/game-distribution/GameDetailPage.tsx
+++ b/src/components/game-distribution/GameDetailPage.tsx
@@ -301,7 +301,7 @@ function GameDetailContent({
   const reviews = useGameReviews(game.id, canReview, publiclyVisible);
   /**
    * 作者展示名：公开投影只会退化成占位角色词，真实昵称按作者 ID 补查一次
-   * （见 useGameAuthorName）；查不到时给空串，展示层就不渲染「由 X 制作」那一行。
+   * （见 useGameAuthorName）；查不到时不显示昵称，仍保留头像、主页入口和关注操作。
    */
   const authorName = useGameAuthorDisplayName(game.author);
   const displayGame = {
@@ -335,7 +335,7 @@ function GameDetailContent({
           <CreatorAuthor
             user={{
               id: game.author.id,
-              displayName: authorName || game.author.name || '创作者',
+              displayName: authorName ?? '',
               avatarUrl: game.author.avatarUrl ?? null,
               publicUserCode: '',
             }}
diff --git a/src/components/game-distribution/GameDistributionPages.test.tsx b/src/components/game-distribution/GameDistributionPages.test.tsx
index a081ec002..649dde7b5 100644
--- a/src/components/game-distribution/GameDistributionPages.test.tsx
+++ b/src/components/game-distribution/GameDistributionPages.test.tsx
@@ -18,6 +18,7 @@ import type {
   GameDistributionMyGame,
   GameDistributionVersionStatusEntry,
 } from '../../services/gameDistributionClient';
+import { setCreatorViewer } from '../creator/creatorRelationshipState';
 import { GameDetailPage } from './GameDetailPage';
 import { GameGalleryPage } from './GameGalleryPage';
 import { GamePlayPage } from './GamePlayPage';
@@ -31,6 +32,19 @@ const recordGamePlayMock = vi.hoisted(() => vi.fn());
 const resolvedAssetUrlMock = vi.hoisted(() => vi.fn());
 const listGameReviewsMock = vi.hoisted(() => vi.fn());
 const getMyGameReviewMock = vi.hoisted(() => vi.fn());
+const getPublicAuthUserByIdMock = vi.hoisted(() => vi.fn());
+const getCreatorRelationshipMock = vi.hoisted(() => vi.fn());
+const changeCreatorRelationshipMock = vi.hoisted(() => vi.fn());
+
+vi.mock('../../services/authService', async (original) => ({
+  ...(await original<typeof import('../../services/authService')>()),
+  getPublicAuthUserById: getPublicAuthUserByIdMock,
+}));
+vi.mock('../../services/creatorProfileClient', async (original) => ({
+  ...(await original<typeof import('../../services/creatorProfileClient')>()),
+  getCreatorRelationship: getCreatorRelationshipMock,
+  changeCreatorRelationship: changeCreatorRelationshipMock,
+}));
 
 vi.mock('../../services/gameDistributionClient', () => ({
   listGames: listGamesMock,
@@ -129,6 +143,13 @@ afterEach(() => {
 
 beforeEach(() => {
   vi.clearAllMocks();
+  setCreatorViewer(null);
+  getCreatorRelationshipMock.mockResolvedValue({
+    relationship: { isSelf: false, isFollowing: false, isFollowedBy: false },
+  });
+  changeCreatorRelationshipMock.mockResolvedValue({
+    relationship: { isSelf: false, isFollowing: true, isFollowedBy: false },
+  });
   setViewportWidth(1024);
   listGamesMock.mockResolvedValue([]);
   getGameMock.mockResolvedValue(createGame());
@@ -188,6 +209,57 @@ describe('GameGalleryPage', () => {
 });
 
 describe('GameDetailPage', () => {
+  it.each([
+    ['创作者', '成功'],
+    ['未知作者', '空名'],
+    ['创作者', '失败'],
+  ])(
+    '作者为占位词 %s 时，补查%s均不闪现伪昵称且保留作者操作',
+    async (name, outcome) => {
+      const lookup = deferred<{ displayName: string }>();
+      getPublicAuthUserByIdMock.mockReturnValueOnce(lookup.promise);
+      getGameMock.mockResolvedValueOnce(
+        createGame({ author: { id: 'author-2', name } }),
+      );
+      const onOpenCreator = vi.fn();
+      render(
+        <GameDetailPage
+          gameId="game-1"
+          onBack={vi.fn()}
+          onPlay={vi.fn()}
+          onOpenCreator={onOpenCreator}
+        />,
+      );
+      const link = await screen.findByRole('link', { name: '查看创作者主页' });
+      expect(link.getAttribute('href')).toBe('/creators?id=author-2');
+      expect(link.querySelector('strong')?.textContent).toBe('');
+      expect(getPublicAuthUserByIdMock).toHaveBeenCalledWith('author-2');
+      await waitFor(() => {
+        expect(
+          (screen.getByRole('button', { name: '关注' }) as HTMLButtonElement)
+            .disabled,
+        ).toBe(false);
+      });
+      await act(async () => {
+        if (outcome === '失败') lookup.reject(new Error('查询失败'));
+        else
+          lookup.resolve({ displayName: outcome === '成功' ? '真实昵称' : '' });
+      });
+      expect(link.querySelector('strong')?.textContent).toBe(
+        outcome === '成功' ? '真实昵称' : '',
+      );
+      expect(screen.queryByText(name, { exact: true })).toBeNull();
+      fireEvent.click(link);
+      expect(onOpenCreator).toHaveBeenCalledWith('author-2');
+      fireEvent.click(screen.getByRole('button', { name: '关注' }));
+      await screen.findByRole('button', { name: '取消关注' });
+      expect(changeCreatorRelationshipMock).toHaveBeenCalledWith(
+        'author-2',
+        'follow',
+      );
+    },
+  );
+
   it('blocks desktop-only games on a mobile viewport', async () => {
     setViewportWidth(375);
     getGameMock.mockResolvedValueOnce(
diff --git a/src/components/platform-entry/PlatformEntryActiveFlowShell.test.tsx b/src/components/platform-entry/PlatformEntryActiveFlowShell.test.tsx
index bed374949..e515f58c9 100644
--- a/src/components/platform-entry/PlatformEntryActiveFlowShell.test.tsx
+++ b/src/components/platform-entry/PlatformEntryActiveFlowShell.test.tsx
@@ -957,7 +957,7 @@ describe('游戏发布灰度入口', () => {
   });
 });
 
-describe('创作者页面返回', () => {
+describe('创作者页面深链与返回', () => {
   beforeEach(() => {
     Object.defineProperty(Element.prototype, 'scrollTo', {
       configurable: true,
@@ -990,6 +990,30 @@ describe('创作者页面返回', () => {
     });
   });
 
+  it.each(['', '&tab=', '&tab=invalid'])(
+    '关系列表拒绝无效 tab：%s，不请求列表且仍可返回',
+    async (query) => {
+      creatorClientMock.getCreatorConnections.mockClear();
+      window.history.replaceState(
+        null,
+        '',
+        `/creators/connections?id=user-2${query}`,
+      );
+      render(
+        <StatefulPlatformEntryFlowShell initialStage="creator-connections" />,
+      );
+      expect((await screen.findByRole('alert')).textContent).toBe(
+        '无效的关系列表链接',
+      );
+      expect(creatorClientMock.getCreatorConnections).not.toHaveBeenCalled();
+      fireEvent.click(screen.getByRole('button', { name: '返回' }));
+      await screen.findByRole('heading', { name: '创作者主页' });
+      expect(window.location.pathname + window.location.search).toBe(
+        '/creators?id=user-2',
+      );
+    },
+  );
+
   it.each(['/creators', '/creators?id=user-1', '/creators?id=user-2'])(
     '直接打开 %s 后返回替换为游戏广场，不增加历史',
     async (path) => {
diff --git a/src/components/platform-entry/PlatformEntryActiveFlowShell.tsx b/src/components/platform-entry/PlatformEntryActiveFlowShell.tsx
index 47ae83d1b..d2050a738 100644
--- a/src/components/platform-entry/PlatformEntryActiveFlowShell.tsx
+++ b/src/components/platform-entry/PlatformEntryActiveFlowShell.tsx
@@ -680,6 +680,7 @@ export function PlatformEntryFlowShellImpl({
     typeof window === 'undefined' ? '' : window.location.search,
   );
   const gameId = gameSearchParams.get('id');
+  const creatorConnectionTab = gameSearchParams.get('tab');
   const publishGameId = gameSearchParams.get('game');
   const avatarUrl = authUi?.user?.avatarUrl?.trim() || null;
   const avatarLabel = resolveActiveUserAvatarLabel(authUi?.user);
@@ -910,9 +911,10 @@ export function PlatformEntryFlowShellImpl({
                       <CreatorConnectionsPage
                         id={gameId}
                         tab={
-                          gameSearchParams.get('tab') === 'followers'
-                            ? 'followers'
-                            : 'following'
+                          creatorConnectionTab === 'following' ||
+                          creatorConnectionTab === 'followers'
+                            ? creatorConnectionTab
+                            : null
                         }
                         onOpenCreator={openCreator}
                         onOpenConnections={openCreatorConnections}